Opium Tar — Opium Tar belongs to the green and black color family. It is a very dark, desaturated shade of green, with hints of yellow and black. The higher value for green, compared to the lower red and blue values, gives it a definite green tint. The low values for all three components result in a dark, nearly black appearance. Due to its low saturation and high darkness, it appears as a very deep, muted shade, sometimes described as a forest green or deep olive.